Congratulations!
Start selling stuff on e-bay/car boots sales that you do not need anymore to generate cash for your reception.
for eg. I recently sold some gold bracelets that I inherited for 2k. If you set your mind to it it is amazing how much you can raise.
Open a high interest, fixed term notice account where you can save specifically for your wedding.
Cancel Christmas gift s this year, just buy small token presents if need be.
Cancel your annual holidays.
Cancel hobbies/subscriptions for a year
Have a late afternoon ceremony (4/5pm) so you can invite everybody to the wedding ceremony & reception afterwards. That way you have one set of catering costs so you can feed everyone at the same time.
My friend did this & avoided paying an additional 2k for a buffet.
Hire a community hall/ scouts club as they are cheaper. Or approach a hotel/restaurant for a mid week deal as there are some good inclusive deals at the moment.
Mid week weddings are a good way to manage your guest list.
My brother ordered the M&S white chocolate ribbons cake for £249. A similar cake from a specialist wedding cake bakery would have cost about £600.
m.marksandspencer.com/mt/www.marksandspencer.com/White-Chocolate-Ribbons-Wedding-Cake/dp/B004VSVXU8
Ask a friend or relation with a nice car to drive you to the wedding. So you can save £££ on unnecessary car hire fees.
Look for a dress & suits in the sale.
m-uk.monsoon.co.uk/uk/sale/wedding-dresses?redirected;jsessionid=9CD044C9D2D75032DCEA6F3B28EB6E29.app8
Save £2 coins & once a month transfer the money to your savings account.
Only when you have done all you can to generate extra cash, should you approach the bank of mum & dad for a loan or a cash gift! So atleast it looks like you are in control!